diff options
| author | anzz1 <anzz1@live.com> | 2023-03-28 22:44:29 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-03-28 22:44:29 +0300 |
| commit | 5a5f8b1501fbb34367225544010ddfc306d6d2fe (patch) | |
| tree | ab77116dc4b03350ecdf3b9b00b7ff46b0b4b0c5 /ggml.c | |
| parent | f1217055eaedfc7214be93d98e529cae89830430 (diff) | |
Enable Fused-Multiply-Add (FMA) and F16C/CVT16 vector extensions on MSVC (#375)
* Enable Fused-Multiply-Add (FMA) instructions on MSVC
__FMA__ macro does not exist in MSVC
* Enable F16C/CVT16 vector extensions on MSVC
__F16C__ macro does not exist in MSVC, but is implied with AVX2/AVX512
* MSVC cvt intrinsics
* Add __SSE3__ macro for MSVC too because why not
even though it's not currently used for anything when AVX is defined
Diffstat (limited to 'ggml.c')
| -rw-r--r-- | ggml.c | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -79,6 +79,19 @@ static int sched_yield (void) { typedef void* thread_ret_t; #endif +// __FMA__ and __F16C__ are not defined in MSVC, however they are implied with AVX2/AVX512 +#if defined(_MSC_VER) && (defined(__AVX2__) || defined(__AVX512F__)) +#ifndef __FMA__ +#define __FMA__ +#endif +#ifndef __F16C__ +#define __F16C__ +#endif +#ifndef __SSE3__ +#define __SSE3__ +#endif +#endif + #ifdef __HAIKU__ #define static_assert(cond, msg) _Static_assert(cond, msg) #endif @@ -172,8 +185,13 @@ typedef double ggml_float; #ifdef __F16C__ +#ifdef _MSC_VER +#define GGML_COMPUTE_FP16_TO_FP32(x) _mm_cvtss_f32(_mm_cvtph_ps(_mm_cvtsi32_si128(x))) +#define GGML_COMPUTE_FP32_TO_FP16(x) _mm_extract_epi16(_mm_cvtps_ph(_mm_set_ss(x), 0), 0) +#else #define GGML_COMPUTE_FP16_TO_FP32(x) _cvtsh_ss(x) #define GGML_COMPUTE_FP32_TO_FP16(x) _cvtss_sh(x, 0) +#endif #elif defined(__POWER9_VECTOR__) |